Public water system record
Sullivan Mutual Water
Serves an area of Santa Clara County, CA · 53 people served
Federal records show 1 health-based violation and 3 monitoring/reporting issues for Sullivan Mutual Water in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- Sullivan Mutual Water draws water from 1 well.
- Most recent formal enforcement: compliance order (no penalty) by California, January 2022.
- Record on file since 1980, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 16 unknown out of 16 service lines.
Check whether Sullivan Mutual Water serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Mar 1, 2018 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
Full record since 1980
EPA's records for Sullivan Mutual Water go back to 1980. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 8 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 5 |
| 2000s | 0 | 2 |
| 2010 to October 18, 2016 | 1 | 1 |
| October 19, 2016 to 2019 | 1 | 0 |
| 2020s | 0 | 3 |
Most recent health-based violation before October 19, 2016: Total Coliform, began December 2015, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2015 | Resolved |
Enforcement actions
California regulators took 5 formal enforcement actions against Sullivan Mutual Water between 2008 and 2022. The most recent was a compliance order (no penalty) in January 2022.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jan 27, 2022 | California | Compliance order (no penalty) | 1 violation: Nitrate |
| Mar 30, 2018 | California | Compliance order (no penalty) | 1 violation (1 health-based): Revised Total Coliform Rule |
| Feb 16, 2016 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
| Jan 27, 2016 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Jun 26, 2008 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
What the violations mean
Revised Total Coliform Rule
1 incidentThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Where the water comes from
Sullivan Mutual Water draws water from 1 well.
Annual water quality report
Sullivan Mutual Water must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Sullivan Mutual Water for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.
Certified drinking water labs by state EPA guidance for private wells